Ship-track-based assessments overestimate the cooling effect of anthropogenic aerosol
Franziska Glassmeier,
Fabian Hoffmann,
Jill S. Johnson
et al.
Abstract:The effect of anthropogenic aerosol on the reflectivity of stratocumulus cloud decks through changes in cloud amount is a major uncertainty in climate projections. The focus of this study is the frequently occurring non-precipitating stratocumulus. In this regime, cloud amount can decrease through aerosol-enhanced cloud-top mixing. The climatological relevance of this effect is debated because ship exhaust does not appear to generate significant change in the amount of these clouds. Through a novel analysis of… Show more
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